<!DOCTYPE html>
<html>
<head>
	<title>侧边栏</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<style>
	html,body{height: 100%;}
	body{font-family: 'Microsoft Yahei';margin:0;padding:0;}
	.center {
		position: fixed;
		left: 10px;
		top: 10px;
    	width: 100%;
    	height: 100%;
	    font-size: 18px;
	    color: #CCC;
	}
	</style>
</head>
<body>
	<div class="center"><p>这是一个自定义侧边栏</p></div>
</body>
</html>